The Shaft,shouldered, cataloged under National Stock Number 3040-01-226-3747, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-226-3747 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 7 |
| First End Diameter | 1.1255 INCHES NOMINAL IN |
| Second End Diameter | 1.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 2.500 INCHES NOMINAL IN |
| First End External Thread Length | 2.116 INCHES NOMINAL IN |
| Second End Angle Between Keyways | 90.0 DEGREES NOMINAL |
| First End Style | EXTERNAL THREADED |
| Second End Keyway Width | 0.3135 INCHES NOMINAL IN |
| Second End Groove Diameter | 1.1250 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.173 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1250 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.250 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND TWO FLAT KEYWAYS |
| Material | COPPER ALLOY |
| External Keyway Length | 1.500 INCHES NOMINAL SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| BB-19 | 3/2 Design control — primary reference U.S. Government activity |
| 803-1385623 | D/9 Drawing number reference only U.S. Government activity |
| 803-1385623-102-22 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-01-226-3747 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-226-3747: Step Quantity: 7; First End Diameter: 1.1255 INCHES NOMINAL IN; Second End Diameter: 1.2500 INCHES NOMINAL IN; Largest Step Diameter: 2.500 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.